I realized that he’s crying after read some news out there.. here it is the cut from the article..

What immediately raised curiosity of the viewers, however, was the quartet’s lead vocalist Changmin, who was seen with wet eyes during the performance of their title track. Some fans were moved by his tears, while others were gravely concerned about the reason for them.

Once in the waiting room, he explained to a journalist, “I was overwhelmed with emotion that tears fell. It’s not because of a serious matter or anything.”

In investing their heart and soul into singing, 2AM provoked an emotion among the viewers. It’s a beautiful thing when singers become so immersed in their own music that they shed a few tears. Artists like 2AM deserve to be awarded for such talent and stage presence, not those that sing about letters of the English alphabet.